*{
    text-decoration:none;
    list-style-type:none 
}

.ul{
    margin-top: 0px;
    padding-bottom: 10px;
    height: 800px;
    background-color: #2d2d2d;
    padding-left: 10px;

}
.ul a{
    color: white;
    font-size: 16px;
    font-family: "微软雅黑";
    letter-spacing: 3px;
}
a:visited{
    text-decoration: none;
}
a:hover{
    text-decoration: none;
}
.nav{
    display: block;
    height: 40px;
    width: 100%;
    line-height: 40px;
    padding-left: 18px;
}
.chnav{
    display: block;
    height: 35px;
    width: 100%;
    line-height: 35px;
    padding-left: 40px;
}
.chnav:hover{
    background-color: black;
    border-radius: 5%;
}
.nav:hover{
    background-color: black;
    border-radius: 5%;
}
#lit{
   padding-top: 20px;
}
@media  (max-width:1218px) {
    .ul a{
        overflow: hidden;
        color: white;
        /* font-size: 10px; */
        font-family: "微软雅黑";
    }
    .chul{
        overflow: hidden;
    }
}
@media  (max-width:768px) {
    .ul a{
        overflow: hidden;
        color: white;
        font-size: 10px;
        font-family: "微软雅黑";
    }
    .chul{
        font-size: 10px;
        margin-left: -15px;
    }
}